Title :
Effects of TCSC on IDMT Overcurrent Relay in the presence of phase to earth fault
Author :
Zellagui, M. ; Benabid, R. ; Chaghi, A. ; Boudour, Mohamed
Author_Institution :
Dept. of Electr. Eng., Univ. of Batna, Batna, Algeria
Abstract :
The paper presents the effect of apparent reactance by series Flexible AC Transmission System (FACTS) i.e. Thyristor Controlled Series Capacitor (TCSC) on transmission line parameters protected by an Inverse Definite Minimum Time (IDMT) Directional Overcurrent Relay (DOCR) based International Electrotechnical Commission (IEC) standard characteristic curve. The DOCR is used to protect a 400 kV transmission line of the Algerian transmission networks which belong to the Algerian Company of Electrical and Gas. The effects of TCSC on protected transmission line parameters as well as fault current and operation time of the DOCR in the presence of phase to earth fault with fault resistance for three cases study is investigated.
Keywords :
fault currents; overcurrent protection; power transmission lines; thyristors; Algerian transmission networks; DOCR; IDMT; TCSC; directional overcurrent relay; fault current; fault resistance; international electrotechnical commission standard; inverse definite minimum time; operation time; phase to Earth fault; series flexible AC transmission system; thyristor controlled series capacitor; transmission line parameters; voltage 400 kV; Circuit faults; Equations; Fault currents; Power capacitors; Power transmission lines; Relays; Thyristors; Apparent Reactance; Directional Overcurrent Relay; Fault Current; Inverse Definite Minimum Time; Operation Time; Thyristor Controlled Series Capacitor;
Conference_Titel :
Systems and Control (ICSC), 2013 3rd International Conference on
Conference_Location :
Algiers
Print_ISBN :
978-1-4799-0273-6
DOI :
10.1109/ICoSC.2013.6750933
